Journal of the Chemical Society. Chemical communications p. 400 - 402 (1987)
Update date:2022-09-26
Topics: Synthesis Sigmatropic rearrangements
Cairns, Nicholas
Harwood, Laurence M.
Astles, David P.
Repeated sequences of <3.3> sigmatropic rearrangements initiated by a Claisen rearrangement permit the synthesis of the 3,6-disubstituted umbelliferone derivatives balsamiferone (4) and gravelliferone (6) from umbelliferone.
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